Title:
METHOD FOR PRODUCING HIGH-ACTIVITY LIGNIN AND BY-PRODUCT FURFURAL AND APPLICATION
Document Type and Number:
WIPO Patent Application WO/2019/114527
Kind Code:
A1
Abstract:
The present invention provides a method for producing high-activity lignin and by-product furfural and an application. The method comprises: using a dissolving pulp pre-hydrolysate and/or sulfite liquor as the raw material, and catalyzing by employing an acid as a catalyst to obtain the lignin and furfural, wherein the acid is one or a combination of at least two of sulfuric acid, phosphoric acid, nitric acid, hydrochloric acid, and acetic acid. According to the method, the yield of the obtained lignin and furfural is further increased by catalyzing the dissolving pulp pre-hydrolysate and/or the sulfite liquor with the acid. Lignin especially has higher reactivity and low molecular weight, and the ratio of 5-methyl furfural in furfural to furfural is in a proper range, so that the strength of furan resin prepared from furfural can be further improved.
Inventors:
JIANG CHENGZHEN (CN)
GAO ZHAOFENG (CN)
SHI FENG (CN)
GAO ZHAOFENG (CN)
SHI FENG (CN)
Application Number:
PCT/CN2018/117273
Publication Date:
June 20, 2019
Filing Date:
November 23, 2018
Export Citation:
Assignee:
JINAN SHENGQUAN GROUP SHARE HOLDING CO LTD (CN)
International Classes:
C08H7/00; C07D307/46; C07D307/50
Domestic Patent References:
| WO2017181280A1 | 2017-10-26 |
Foreign References:
| CN108017790A | 2018-05-11 | |||
| CN105274894A | 2016-01-27 | |||
| CN105264080A | 2016-01-20 | |||
| CN103193737A | 2013-07-10 | |||
| CN103261184A | 2013-08-21 | |||
| CN104072450A | 2014-10-01 | |||
| EP3445754A1 | 2019-02-27 |
Other References:
LIU HAITANG; HU HUIREN; JAHAN M. SARWAR; NI YONGHAO: "Furfural formation from the pre-hydrolysis liquor of a hardwood kraft-based dissolving pulp production process", BIORESOURCE TECHNOLOGY, vol. 131, 3 January 2013 (2013-01-03), AMSTERDAM, NL , pages 315 - 320, XP028989228, ISSN: 0960-8524, DOI: 10.1016/j.biortech.2012.12.158
AJIT SINGH MAMMAN; JONG‐MIN LEE; YEONG‐CHEOL KIM; IN TAEK HWANG; NO‐JOONG PARK; YOUNG KYU HWANG; JONG‐SAN CHANG; JIN‐SOO HWANG: "Furfural: Hemicellulose/xylosederived biochemical", BIOFUELS, BIOPRODUCTS & BIOREFINING, vol. 2, no. 5, 12 September 2008 (2008-09-12), GB , pages 438 - 454, XP072439648, ISSN: 1932-104X, DOI: 10.1002/bbb.95
CAI ET AL.: "Integrated furfural production as a renewable fuel and chemical platform from lignocellulosic biomass", J. CHEM. TECHNOL., vol. 89, 9 August 2013 (2013-08-09), pages 2 - 10, XP002776415, DOI: 10.1002/jctb.4168
VILA C, SANTOS V, PARAJÓ J.C: "Recovery of lignin and furfural from acetic acid–water–HCl pulping liquors", BIORESOURCE TECHNOLOGY, vol. 90, no. 3, 1 December 2003 (2003-12-01), AMSTERDAM, NL , pages 339 - 344, XP093073485, ISSN: 0960-8524, DOI: 10.1016/S0960-8524(03)00030-0
PAL SIDDHARTHA, JOY SHEREENA, KUMBHAR PRAMOD, TRIMUKHE K. D., VARMA A. J., PADMANABHAN SASISANKER: "Effect of Mixed Acid Catalysis on Pretreatment and Enzymatic Digestibility of Sugar Cane Bagasse", ENERGY & FUELS, vol. 30, no. 9, 15 September 2016 (2016-09-15), WASHINGTON, DC, US. , pages 7310 - 7318, XP093073489, ISSN: 0887-0624, DOI: 10.1021/acs.energyfuels.6b01011
See also references of EP 3725823A4
AJIT SINGH MAMMAN; JONG‐MIN LEE; YEONG‐CHEOL KIM; IN TAEK HWANG; NO‐JOONG PARK; YOUNG KYU HWANG; JONG‐SAN CHANG; JIN‐SOO HWANG: "Furfural: Hemicellulose/xylosederived biochemical", BIOFUELS, BIOPRODUCTS & BIOREFINING, vol. 2, no. 5, 12 September 2008 (2008-09-12), GB , pages 438 - 454, XP072439648, ISSN: 1932-104X, DOI: 10.1002/bbb.95
CAI ET AL.: "Integrated furfural production as a renewable fuel and chemical platform from lignocellulosic biomass", J. CHEM. TECHNOL., vol. 89, 9 August 2013 (2013-08-09), pages 2 - 10, XP002776415, DOI: 10.1002/jctb.4168
VILA C, SANTOS V, PARAJÓ J.C: "Recovery of lignin and furfural from acetic acid–water–HCl pulping liquors", BIORESOURCE TECHNOLOGY, vol. 90, no. 3, 1 December 2003 (2003-12-01), AMSTERDAM, NL , pages 339 - 344, XP093073485, ISSN: 0960-8524, DOI: 10.1016/S0960-8524(03)00030-0
PAL SIDDHARTHA, JOY SHEREENA, KUMBHAR PRAMOD, TRIMUKHE K. D., VARMA A. J., PADMANABHAN SASISANKER: "Effect of Mixed Acid Catalysis on Pretreatment and Enzymatic Digestibility of Sugar Cane Bagasse", ENERGY & FUELS, vol. 30, no. 9, 15 September 2016 (2016-09-15), WASHINGTON, DC, US. , pages 7310 - 7318, XP093073489, ISSN: 0887-0624, DOI: 10.1021/acs.energyfuels.6b01011
See also references of EP 3725823A4
Attorney, Agent or Firm:
BEIJING CAI HE LAW FIRM (CN)
Download PDF: